Hand tool for applying a motion stop ferrule to a safety cable

Apparatus for crimping a motion stop ferrule to a wire type safety cable extending through the bore of the ferrule while under tension comprising:

• a tool body having at least one handle element connected thereto for manual manipulation;
• an elongate nose portion extending forwardly of the tool body and having a distal end and a proximal end, said proximal end connected to the tool body;
• a ferrule crimping punch driving element extending axially along the nose portion and operatively connected to the handle element for reciprocating motion upon manipulation of the handle element;
• said distal end of said nose portion including a ferrule receiving opening extending partially therethrough and transversely of the nose portion distal end;
• a crimping punch disposed at the distal end area of said nose portion, operatively connected to the punch driving element for reciprocal movement axially along the nose portion, and extending axially into said opening upon outward reciprocal movement to a sufficient extent to cause crimping of a ferrule located in said opening;
• a safety cable tension device operatively associated with the tool body and arranged to be engageable by a safety cable extending from the distal end of said nose portion to apply tension force to such cable upon actuation thereof;
• said safety cable tension device comprising a rotary knob operatively associated with the tool body and connected to a tapered cable friction gripper by a detent clutch mechanism arranged to disconnect the knob from the tapered cable friction gripper when tension in a cable gripped by the friction gripper exceeds a threshold limit, and means for preventing rotation of the knob in a cable unwinding direction.

Apparatus for crimping a motion stop ferrule to a wire type safety cable extending through the bore of the ferrule while under tension and for cutting the free end of the cable from the ferrule upon crimping comprising:

• a tool body having at least one handle element connected thereto for manual manipulation;
• an elongate nose portion extending forwardly of the tool body and having a distal end and a proximal end, said proximal end connected to the tool body;
• a ferrule crimping punch driving element extending axially along the nose portion and operatively connected to the handle element for reciprocating motion upon manipulation of the handle element;
• said distal end of said nose portion including a ferrule receiving opening extending partially therethrough and transversely of the nose portion distal end;
• a crimping punch disposed at the distal end area of said nose portion, operatively connected to the punch driving element for reciprocal movement axially along the nose portion, and including a distal end extending axially into said opening upon outward reciprocal movement to a sufficient extent to cause crimping of a ferrule located in said opening;
• a safety cable tension device operatively associated with the tool body and arranged to be engageable by a safety cable extending from the distal end of said nose portion to apply tension force to such cable upon actuation thereof;
• said ferrule receiving opening being elongate in the axial direction of said nose portion and having a length greater than the diameter of a ferrule to be crimped by the tool, said opening having a proximal end disposed toward the crimping punch and a longitudinally opposed distal end;
• said opening including a transversely extending sidewall at said opening distal end, said crimping punch cooperating with said sidewall during crimping of a ferrule disposed in said opening;
• a safety cable receiving aperture having at least one dimension extending transversely across the aperture that is smaller than the diameter of a ferrule to be crimped by the tool, said aperture extending transversely of said nose portion in the same direction as said ferrule receiving opening and intersecting the bottom of said ferrule receiving opening where the safety cable receiving bore of a ferrule is disposed before crimping, said aperture being located closer to said distal end of said crimping punch then said distal end of said ferrule receiving opening when the punch distal end is disposed at a position adjacent a ferrule located in said ferrule receiving opening so that, upon extension of the crimping punch and with a ferrule disposed in the ferrule receiving opening so that its bore is aligned with the cable receiving aperture and its one end is resting against the bottom of the opening with a safety cable extending through the bore, a ferrule will be driven axially relative to the cable receiving aperture against said transversely extending sidewall to be thereby crimped, and said axial movement will cause a safety cable extending through the ferrule bore and cable receiving aperture to be sheared between the end of the ferrule located against the bottom wall of the opening and the bottom wall of the opening.

Apparatus for crimping a motion stop ferrule to a wire type safety cable extending through the bore of the ferrule while under tension and for cutting the free end of the cable from the ferrule upon crimping comprising:

• a tool body having at least one handle element connected thereto for manual manipulation;
• an elongate nose portion extending forwardly of the tool body and having a distal end and a proximal end, said proximal end connected to the tool body;
• a ferrule crimping punch driving element extending axially along the nose portion and operatively connected to the handle element for reciprocating motion upon manipulation of the handle element;
• said distal end of said nose portion including a ferrule receiving opening extending partially therethrough and transversely of the nose portion distal end;
• a crimping punch disposed at the distal end area of said nose portion, operatively connected to the punch driving element for reciprocal movement axially along the nose portion, and including a distal end extending axially into said opening upon outward reciprocal movement to a sufficient extent to cause crimping of a ferrule located in said opening;
• a safety cable tension device operatively associated with the tool body and arranged to be engageable by a safety cable extending from the distal end of said nose portion to apply tension force to such cable upon actuation thereof;
• said ferrule receiving opening being elongate in the axial direction of said nose portion and having a length greater than the diameter of a ferrule to be crimped by the tool, said opening having a proximal end disposed toward the crimping punch and a longitudinally opposed distal end;
• said opening including a transversely extending sidewall at said opening distal end, said crimping punch cooperating with said sidewall during crimping of a ferrule disposed in said opening;
• a safety cable receiving aperture having at least one dimension extending transversely across the aperture that is smaller than the diameter of a ferrule to be crimped by the tool, said aperture extending transversely of said nose portion in the same direction as said ferrule receiving opening and intersecting the bottom of said ferrule receiving opening where the safety cable receiving bore of a ferrule is disposed before crimping, said aperture being located closer to said crimping punch distal end when the punch distal end than said transversely extending sidewall is disposed at a position adjacent a ferrule located in said ferrule receiving opening so that, upon extension of the crimping punch and with a ferrule disposed in the ferrule receiving opening so that its bore is aligned with the cable receiving aperture and its one end is resting against the bottom of the opening with a safety cable extending therethrough, a ferrule will be driven axially relative to the cable receiving aperture against said transversely extending sidewall to be thereby crimped, and said axial movement will cause a safety cable extending through the ferrule bore and cable receiving aperture to be sheared between the end of the ferrule located against the bottom wall of the opening and the bottom wall of the opening.